Interactive navigation

How to navigate within the Visible Human

The applet provides three forms of control for navigating within the Visible Human. By clicking on the buttons (1), you can select a standard slice orientation (axial, sagittal, coronal). By clicking and dragging either on the small 3D model (2) or on the currently displayed slice (3), you can move as illustrated on the figure below.

When using the left mouse button on the miniature 3D model, the slice follows the mouse cursor position. When interacting on the displayed slice, translations and rotations are carried out relatively to the current slice position and orientation.

To adjust the performance of the applet, use the sliders provided on the navigation panel. Requesting higher image quality or more frames per second will require more network bandwidth and processing power.

Using the markers

The applet provides the possibility to add markers to the dataset. The markers are fat polylines that allow finding one's way around during navigation. To create new markers, use the markers menu to first create a new collection, and then add markers to this collection. To place a new point for a marker, make sure it is selected and click on the slice view with the left mouse button while holding down the Alt key. To add more points to the marker, repeat.

Saving and loading markers

You can load a marker collection from the server by selecting 'Load slice or markers' from the File menu. This will show a dialog box with all of the data you can load. Marker collections can also be saved back to the server with the 'Save markers' option. Only the marker collection that is currently selected is saved.

Saving and loading slices

You can save your current position (slice) to the server, and reload it at a later time. To do this, select 'Save slice position' from the file menu. To reload the position, you can use the 'Load slice or markers' option from the File menu. You can also find your saved slices in the saved data section of the web site, where you can get the slice as a standard JPEG file for future use.